Etymology
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-ar 

word-formation element meaning "pertaining to, of the nature of," from Latin -arem, -aris "of the kind of, belonging to," a secondary form (by dissimilation) of -alis, used after syllables with an -l- (such as insularis for *insulalis, stellaris for *stellalis).

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lacto- 
before vowels, lac-, word-forming element used in chemistry and physiology from 19c. and meaning "milk," from Latin lac (genitive lactis) "milk," from Proto-Italic *(g)lagt-, from PIE root *g(a)lag- "milk." This and the separate root *melg- (source of milk (n.)) account for words for "milk" in most of the Indo-European languages. The absence of a common word for it is considered a mystery. Middle Irish lacht, Welsh llaeth "milk" are loan words from Latin.
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-stat 
word-forming element used in making names of devices for stabilizing or regulating (such as thermostat), from Greek statos "standing, stationary," from PIE *ste-to-, suffixed form of root *sta- "to stand, make or be firm." First used in heliostat "an instrument for causing the sun to appear stationary" (1742). Related: -static.
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-etic 
word-forming element meaning "pertaining to," from Greek -etikos, adjectival suffix for nouns ending in -esis.
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maxi- 

word-forming element meaning "maximum, very large or very long for its kind," abstracted from maximum.

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-lyze 
word-forming element for making verbs corresponding to nouns in -lysis. Chiefly U.S.; the British preferring -lyse.
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-ite (1)
word-forming element indicating origin or derivation from, from French -ite and directly from Latin -ita, from Greek -ites (fem. -itis), word-forming element making adjectives and nouns meaning "connected with or belonging to." Especially used in classical times to form ethnic and local designations (for example in Septuagint translations of Hebrew names in -i) and for names of gems and minerals.
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-mane 

word-forming element of French origin, "one who has a mania for," ultimately from Greek -manes "ardent admirer," related to mania "madness" (see mania).

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-i (2)
plural suffix sometimes preserved in English for words from Latin, it is the Latin plural of nouns of the second declension (such as focus/foci, radius/radii).
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-scope 
word-forming element indicating "an instrument for seeing," from Late Latin -scopium, from Greek -skopion, from skopein "to look at, examine" (from PIE root *spek- "to observe").
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